Ventilated hood for engines



Jan. 7, 1930. 5.1.1. Hour 1,742,598

VENTILATED noon FOR, mamas File d Jan. 30. 192a INVENTOR. 6amuel E. Holt.

( g ATTORNEY;

Patented Jan. 7, 1930 UNITED STATES SAMUEL E. HOLT, OF RHINEIBECK, NEW YORK VENTILATED noon r012, ENGINES Application filed January 30,1928 Serial no. @50330.

In the design and construction of hoods for engines, such as are used on automobiles, aeroplanes, etc., it has been found desirable to provide means whereby the hot air from the engine can readily escape, and yet prevent the entering of rain, dirt, etc., and this is accomplished at the present time, by forming the sides of the hood with a series of openings or louvres which are protected by stationary wings or guards to prevent the ingress of water, etc., but during cold weather, these openings allow too much of the hot air to escape, thus cooling the motor more than is desired.

The object of the present invention is to provide an engine hood, having its sides formed with a large opening of any desired shape, which shall be provided with a frame carrying a movable register composed of a series of slats provided with means for opening or closing the same.

Another object of the invention is to provide a device of this class that can either be incorporated into the hood when the same is made, or attached to the same at a later time, by cutting out the desired opening in the same.

A further object being to provide a register for engine hoods, that shall be cheap, durable, eflicient and contain few parts, and be easily installed and operated.

With these and other objects in view, my invention consists in certain construction and combination of parts as will hereinafter be fully described and claimed, and illustrated in the accompanying drawing, which forms a part hereof, and in which like figures of reference refer to corresponding parts in all of the views, and it is to be understood that slight changes may be made without departing from the spirit of the invention.

In the drawings V Figure 1 is a perspective view of an automobile hood, showing the device attached thereto.

Figure 2 is a horizontal View of one of the sides of the hood, showing the same in section, and with the slats or shutters in their open position.

Figure 3 is also a partial sectional View of thesame, but showing the slats in a closed position. 1 a

Figure 4 is also a partial sectional view of the same, but showing the top of the frame, and the method of connecting togetherand operating the slats. I I

Figure 5 is. an enlarged partial vertical sectional view, taken on, the, li-ne.A A, of Figure 2 showing a single'sl'at. and the method of mounting the same.

Referring, to the drawings r The usual form of automobile hood is shown, and, comprises the two top sections 10, which are hingedtogether as at'll, and to which are hinged at 12 the two. side sections 13; said, side sections being formed with the usual bead 14.1 f

In said'side sections 13, are cut, openings, hereshown as rectangular,bu t which may be of any desired size or shape, and within this opening is mounted a frame, 15,which is se cured'therein by a series of-rivets 16 or bolts, or in any other suitable manner, such as welding. i v H Said frame 15, is formed with an upper flange 1 7 and a lower flange 18, both of which: pro ect inward at right angles to the sides of said frame 15; andsaid'flanges 17 and 181 are formed with avseries of: equally spaced and alined'holes. V

The register is formed by a series of slats 19, wh1ch. are formed with the trunnions 20,. whrch are mounted in the holesin the flanges 17 and 18fand on which said slats 19can turn; the upper trunnion being longer than the lower trunnion and extending above thefiange 17. v For connecting together said slats 1 9 and for operating the same, there is provided an arm 21 which is attached to each of the long trunnions above the flange 17; and near one end of said flange 17 is mounted a plate 22, formed with a central hole through which one of the trunnions extends, and to this trunnion is secured a lever 23, to which is pivoted and to each of the arms 21 a connecting rod 24, in such a manner that when said, lever 23" is moved, all of the slats 19 will be moved in like manner.

One end of the lever 23 extends inwardly,

and the other end extends outwardly through a slot in the frame 15, so that this lever can be readily operated from outside the hood when the same is in a closed position, or from the inside of the hood, when the same is raised.

There is also provided a locking means for this lever 23 which comprises a. series of holes 25 formed in the plate 22, and designed to be engaged by a spur 26 formed on the under side of the lever 23; said lever being resilient so that the spur will snap into the holes and can be disengaged by slightly raising the same.

While I have not shown any device for operating the register from the dashboard of the car, this can be done in any suitable manner if desired, but this construction involves a good deal of mechanism to allow of the raising of the hood, and I deem the present construction better adapted for the purpose.

It will also be understood that the slats in place of being mounted vertical infthe frame, may be arranged in a. horizontal man'-v ner, or there may be several small registers placed in the side of the hood, in place of a single one.

Itmay also be noted that, in place of the rod 24 some other suitablemechanism may be employed to move the slats.

And also for the purpose of preventing any noise or rattle of the slats, the holes in the flanges l7 and 18 may be provided with bushings of rubber or other suitable material, or a flat spring may be attached'to the flange in such a manner as to exert pressure on the end of the trunnion orupon a flat formed on its side. p v

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is I An attachment forengine hoods, comprising a flanged frame adapted to be secured to said hood, said flanges formed with bearings, a series of shutters or slats formed with trunnions mounted in said bearings, arms secured upon said trunnions, one of said arms being elongated and projecting from the side of said frame, a rod connecting all of said arms together, and a plate secured to said frame and'formed with a series of locking holes coacting with said elongated arm to lock the slats in position. y

In testimony whereof I aflix my signature.

SAMUEL E. HOLT. 1 

